WO2012020809A1 - 通信システム、移動機及びネットワーク装置 - Google Patents

通信システム、移動機及びネットワーク装置 Download PDF

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Publication number
WO2012020809A1
WO2012020809A1 PCT/JP2011/068311 JP2011068311W WO2012020809A1 WO 2012020809 A1 WO2012020809 A1 WO 2012020809A1 JP 2011068311 W JP2011068311 W JP 2011068311W WO 2012020809 A1 WO2012020809 A1 WO 2012020809A1
Authority
WO
WIPO (PCT)
Prior art keywords
communication system
wireless communication
mobile device
transition
connection request
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2011/068311
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
健一郎 青柳
公伸 菅野
中村　雄一郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to CN201180039595.6A priority Critical patent/CN103069890B/zh
Priority to US13/816,413 priority patent/US10098046B2/en
Priority to AU2011290144A priority patent/AU2011290144B2/en
Priority to MX2013001657A priority patent/MX2013001657A/es
Priority to KR1020137003852A priority patent/KR20130040245A/ko
Priority to EP11816473.0A priority patent/EP2605595A4/en
Priority to CA2807758A priority patent/CA2807758A1/en
Publication of WO2012020809A1 publication Critical patent/WO2012020809A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present invention relates to a communication system, a mobile device, and a network device including a mobile device and a network device that can be connected to a plurality of wireless communication systems.
  • a method for controlling the mobile device between the wireless communication systems is defined in various ways.
  • the mobile station performs a fallback (CSFB) to 3G CS domain and falls back In 3G, it is defined that the transmission process is executed (see Non-Patent Document 1).
  • CSFB fallback
  • 3G specifically UTRAN
  • 3G does not recognize that the mobile device has transitioned to 3G due to LTE access restrictions, so after the mobile device connects to 3G, control to transition the mobile device to LTE May try to run.
  • the present invention provides a communication system and a mobile device that can prevent a mobile device from transitioning to another wireless communication system when the mobile device transitions to another wireless communication system due to access restrictions of the wireless communication system.
  • An object is to provide a network device and a network device.
  • a feature of the present invention is that a mobile device (mobile device) connectable to a first wireless communication system (LTE system 10) and a second wireless communication system (3G system 20) having a wireless communication technique different from that of the first wireless communication system. 300) and a network device (RNC 210) for controlling transition of the mobile device between the first wireless communication system and the second wireless communication system, wherein the mobile device A connection request with the second wireless communication system is transmitted to the network device as an alternative to the first wireless communication system in association with the access restriction for restricting the communication of the machine being performed in the first wireless communication system.
  • transition information indicating transition from the first wireless communication system is included in the connection request, and the network device adds the transition information from the mobile device. If you obtain is summarized in that to suppress the transition to the mobile station or the first radio communication system of the mobile station other than the mobile station.
  • the present invention is characterized in that a mobile device connectable to a first wireless communication system, a second wireless communication system having a different wireless communication technology from the first wireless communication system, the first wireless communication system, and the second wireless communication system. And a network device that controls transition of the mobile device to and from the communication system, wherein the mobile device is subjected to access restriction for restricting communication of the mobile device in the first wireless communication system. Accordingly, when a connection request to the second wireless communication system is transmitted to the network device as an alternative to the first wireless communication system, there is an ability to execute communication via the first wireless communication system. If the network device includes the capability deficiency information indicating that the network device acquires the capability deficiency information from the mobile device, And summarized in that to prevent a transition to the first radio communication system motivation.
  • the present invention is characterized in that a mobile device connectable to a first wireless communication system, a second wireless communication system having a different wireless communication technology from the first wireless communication system, the first wireless communication system, and the second wireless communication system. And a network device that controls transition of the mobile device to and from the communication system, wherein the mobile device is subjected to access restriction for restricting communication of the mobile device in the first wireless communication system. Accordingly, when a connection request to the second wireless communication system is transmitted to the network device as an alternative to the first wireless communication system, the access restriction is performed in the first wireless communication system. Including the access restriction information indicating the connection request to the second wireless communication system by the connection request. If the mobile station has acquired the access control information, and summarized in that to suppress transition to the mobile station or the first radio communication system of the mobile station other than the mobile station.
  • a feature of the present invention is a mobile device connectable to a first wireless communication system and a second wireless communication system having a wireless communication technology different from that of the first wireless communication system, wherein access restricts communication of the mobile device.
  • access restricts communication of the mobile device When the restriction is performed in the first wireless communication system, when the connection request with the second wireless communication system is transmitted to the network device as an alternative to the first wireless communication system, the first wireless communication The gist is to include transition information indicating transition from the system in the connection request.
  • a feature of the present invention is a mobile device connectable to a first wireless communication system and a second wireless communication system having a wireless communication technology different from that of the first wireless communication system, wherein access restricts communication of the mobile device.
  • access restricts communication of the mobile device When the restriction is performed in the first wireless communication system, when the connection request with the second wireless communication system is transmitted to the network device as an alternative to the first wireless communication system, the first wireless communication The gist is to include incomplete connection information indicating that the communication request does not have the ability to execute communication through the system.
  • a feature of the present invention is a mobile device connectable to a first wireless communication system and a second wireless communication system having a wireless communication technology different from that of the first wireless communication system, wherein access restricts communication of the mobile device.
  • the restriction is performed in the first wireless communication system
  • the connection request with the second wireless communication system is transmitted to the network device as an alternative to the first wireless communication system
  • the first wireless communication The gist is to include access restriction information indicating a connection request to the second wireless communication system due to the access restriction being performed in the system in the connection request.
  • a feature of the present invention is a network device that controls transition of a mobile device between a first wireless communication system and a second wireless communication system having a different wireless communication technology from the first wireless communication system, the mobile device From the above, when acquiring transition information indicating that a transition has occurred from the first wireless communication system, the gist is to suppress the transition of the mobile device or a mobile device other than the mobile device to the first wireless communication system. .
  • a feature of the present invention is a network device that controls transition of a mobile device between a first wireless communication system and a second wireless communication system having a different wireless communication technology from the first wireless communication system, the mobile device When acquiring deficiency information indicating that the mobile station does not have the capability to execute communication via the first wireless communication system, the transition of the mobile device to the first wireless communication system is suppressed.
  • a feature of the present invention is a network device that controls transition of a mobile device between a first wireless communication system and a second wireless communication system having a different wireless communication technology from the first wireless communication system, the mobile device If access restriction information indicating a connection request to the second wireless communication system due to the access restriction being performed in the first wireless communication system is acquired from the mobile device or a mobile device other than the mobile device The gist is to suppress the transition to the first wireless communication system.
  • FIG. 1 is an overall schematic configuration diagram of a radio communication system according to an embodiment of the present invention.
  • FIG. 2 is a functional block configuration diagram of the mobile device 300 according to the embodiment of the present invention.
  • FIG. 3 is a functional block configuration diagram of the RNC 210 according to the embodiment of the present invention.
  • FIG. 4 is a diagram showing a communication sequence of the wireless communication system according to the embodiment of the present invention.
  • FIG. 1 is an overall schematic configuration diagram of a radio communication system according to the present embodiment. As shown in FIG. 1, the radio communication system according to this embodiment includes an LTE system 10 and a 3G system 20.
  • the LTE system 10 (first wireless communication system) is a wireless communication system according to the LTE system.
  • the 3G system 20 (second radio communication system) is a radio communication system according to the 3G system (W-CDMA). That is, the LTE system 10 and the 3G system 20 use different radio communication technologies (RAT).
  • RAT radio communication technologies
  • the LTE system 10 includes an LTE core network 11, an eNodeB 110, and an MME 120.
  • the 3G system 20 includes a 3G core network 21, an RNC 210, a BTS 220, and an SGSN 230 (Serving GPRS Support Node).
  • the RNC 210 controls the BTS 220 and the mobile device 300.
  • the RNC 210 constitutes a network device that controls the transition of the mobile device 300 between the LTE system 10 and the 3G system 20.
  • SGSN 230 also knows the location of mobile device 300 connected to the packet switching (PS) domain (not shown) and relays data destined for mobile device 300.
  • PS packet switching
  • Mobile device 300 can be connected to LTE system 10 and 3G system 20 wirelessly. Specifically, the mobile device 300 performs wireless communication with the eNodeB 110 and connects to the LTE system 10. Also, the mobile device 300 performs wireless communication with the BTS 220 and connects to the 3G system 20. In this embodiment, the RNC 210 and the mobile device 300 constitute a communication system.
  • FIG. 2 is a functional block configuration diagram of the mobile device 300.
  • FIG. 3 is a functional block configuration diagram of the RNC 210.
  • the mobile device 300 includes a first wireless communication unit 301, a second wireless communication unit 303, a CSFB state storage unit 305, and a connection request transmission unit 307.
  • the first wireless communication unit 301 performs wireless communication with the eNodeB 110 in accordance with the LTE scheme.
  • the second wireless communication unit 303 performs wireless communication with the BTS 220 in accordance with the 3G scheme.
  • the CSFB state storage unit 305 stores that the mobile device 300 has executed a CS (Circuit Switched) fallback (hereinafter, CSFB) from the LTE system 10 to the 3G system 20.
  • CSFB Circuit Switched fallback
  • the CSFB state storage unit 305 stores that the CSFB to the 3G system 20 has been executed in the LTE system 10 in accordance with the access restriction of the mobile device 300.
  • the connection request transmission unit 307 transmits a connection request for requesting connection with the 3G system 20 via the second wireless communication unit 303. Specifically, the connection request transmission unit 307 sends a connection request with the 3G system 20 as an alternative to the LTE system 10 due to access restrictions that restrict communication of the mobile device 300 being performed in the LTE system 10.
  • transition information indicating that the LTE system 10 has transitioned can be included in the connection request.
  • the RNC 210 includes a communication unit 211, a CSFB state acquisition unit 213, and a transition suppression unit 215.
  • the communication unit 211 performs communication according to the 3G method with the mobile device 300.
  • the CSFB state acquisition unit 213 acquires the CSFB state of the mobile device 300 based on the transition information included in the connection request transmitted from the mobile device 300. Specifically, the CSFB state acquisition unit 213 can store that the mobile device 300 has transitioned (CSFB) to the 3G system 20 due to access restrictions in the LTE system 10.
  • CSFB mobile device 300 has transitioned
  • the transition deterring unit 215 deters transition (mobility) of the mobile device 300 to the LTE system 10. Specifically, when the transition suppression unit 215 acquires transition information from the mobile device 300, the transition suppression unit 215 suppresses the transition of the mobile device 300 to the LTE system 10. In addition, when the transition suppression unit 215 acquires transition information from the mobile device 300, the transition suppression unit 215 transmits the mobile device (not shown) connected to the 3G system 20 other than the mobile device 300 to the LTE system 10 instead of the mobile device 300. Transitions may be suppressed.
  • FIG. 4 shows a communication sequence of the wireless communication system according to the present embodiment.
  • step S10 the MME 120 transmits PAGING to the mobile device 300 via the eNodeB 110 in order to cause the mobile device 300 (UE) to fall back (CSFB) to the 3G system 20 (CS domain).
  • UE mobile device 300
  • CSFB fall back
  • step S20 the mobile device 300 determines whether the CSFB to the 3G system 20 is associated with access restrictions of the LTE system 10.
  • the mobile device 300 waiting in the LTE system 10 performs processing within the dotted frame according to the normal CSFB procedure. Execute.
  • the mobile device 300 that is waiting in the LTE system 10 in step S30 receives the CSFB to the 3G system 20. Is associated with the access restriction of the LTE system 10, and predetermined INFORMATION ELEMENTS (IE) is set. Specifically, the mobile device 300 sets “CSFB redirection” as the IE. That is, when the CSFB to the 3G system 20 is associated with the access restriction of the LTE system 10, the mobile device 300 does not execute the process within the dotted frame.
  • IE INFORMATION ELEMENTS
  • step S40 the mobile device 300 transitions to the 3G system 20, and transmits RRC CONNECTION REQUEST including “CSFB redirection” to the RNC 210 as IE.
  • step S50 the RNC 210 stores that the CSFB to the 3G system 20 is associated with the access restriction of the LTE system 10 based on the RRC CONNECTION REQUEST received from the mobile device 300. Furthermore, the RNC 210 prevents the mobile device 300 from changing to the LTE system 10 again based on the stored information.
  • transition information indicating that the LTE system 10 has transitioned (CSFB) is used, but the following modification may be made.
  • the mobile device 300 includes incomplete connection information (RRC CONNECTION REQUEST) indicating that it does not have the ability to execute communication via the LTE system 10.
  • RRC CONNECTION REQUEST incomplete connection information
  • the RNC 210 suppresses the transition of the mobile device 300 to the LTE system 10.
  • the mobile station 300 notifies that there is no LTE connection capability in the UE Capability notification in RRC CONNECTION SETUP COMPLETE transmitted after RRC CONNECTION REQUEST, or IE: pre-redirection info is not set You can do it.
  • the mobile device 300 includes, in the RRC CONNECTION REQUEST, access restriction information indicating a connection request to the 3G system 20 due to access restriction being performed in the LTE system 10.
  • the RNC 210 suppresses the transition of the mobile device 300 to the LTE system 10. Specifically, instead of “CSFB redirection”, IE: pre-redirection info may be set, or IE setting may be performed during redirection.
  • the RNC 210 prevents the mobile device (not shown) connected to the 3G system 20 other than the mobile device 300 from transitioning to the LTE system 10 instead of the mobile device 300. May be.
  • the RNC 210 acquires the transition information. The transition to the LTE system 10 is suppressed.
  • the RNC 210 can recognize the state, so that the mobile device 300 is prevented from being transitioned to the LTE system 10 again. .
  • the 3G system 20 is not notified that the mobile device 300 has transitioned from the LTE system 10.
  • the mobile device cannot transition to LTE, and it is possible to reduce the wasteful processing being executed as the entire wireless communication system.
  • the capability deficiency information indicating that the communication system does not have the capability to perform communication through the LTE system 10 or the access restriction is performed in the LTE system 10. The same effect can be obtained even when the access restriction information indicating is used.
  • the LTE system 10 and the 3G system 20 have been described as examples.
  • the present invention is applicable to CSFB between LTE and CDMA2000 or between LTE and GSM. May be.
  • the present invention is not limited to CSFB, and may be applied to cases where Packet-Switching (PS) calls are restricted.
  • PS Packet-Switching

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
PCT/JP2011/068311 2010-08-12 2011-08-10 通信システム、移動機及びネットワーク装置 Ceased WO2012020809A1 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201180039595.6A CN103069890B (zh) 2010-08-12 2011-08-10 通信系统、移动台以及网络装置
US13/816,413 US10098046B2 (en) 2010-08-12 2011-08-10 Communication system, mobile device, and network apparatus
AU2011290144A AU2011290144B2 (en) 2010-08-12 2011-08-10 Communication system, mobile device, and network apparatus
MX2013001657A MX2013001657A (es) 2010-08-12 2011-08-10 Sistema de comunicacion, dispositivo movil, y aparato de red.
KR1020137003852A KR20130040245A (ko) 2010-08-12 2011-08-10 통신시스템, 이동기 및 네트워크 장치
EP11816473.0A EP2605595A4 (en) 2010-08-12 2011-08-10 Communication system, mobile device, and network apparatus
CA2807758A CA2807758A1 (en) 2010-08-12 2011-08-10 Communication system, mobile device, and network apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010181169A JP5243501B2 (ja) 2010-08-12 2010-08-12 通信システム、移動機及びネットワーク装置
JP2010-181169 2010-08-12

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WO2012020809A1 true WO2012020809A1 (ja) 2012-02-16

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US (1) US10098046B2 (enExample)
EP (1) EP2605595A4 (enExample)
JP (1) JP5243501B2 (enExample)
KR (1) KR20130040245A (enExample)
CN (1) CN103069890B (enExample)
AU (1) AU2011290144B2 (enExample)
CA (1) CA2807758A1 (enExample)
MX (1) MX2013001657A (enExample)
NZ (1) NZ607012A (enExample)
WO (1) WO2012020809A1 (enExample)

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See also references of EP2605595A4

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Publication number Publication date
MX2013001657A (es) 2013-03-21
CN103069890A (zh) 2013-04-24
JP2012044271A (ja) 2012-03-01
AU2011290144A8 (en) 2013-03-28
US20130210442A1 (en) 2013-08-15
US10098046B2 (en) 2018-10-09
EP2605595A1 (en) 2013-06-19
CA2807758A1 (en) 2012-02-16
NZ607012A (en) 2014-02-28
AU2011290144A1 (en) 2013-03-07
EP2605595A4 (en) 2017-04-26
JP5243501B2 (ja) 2013-07-24
CN103069890B (zh) 2016-06-01
KR20130040245A (ko) 2013-04-23
AU2011290144B2 (en) 2014-05-01

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